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* Unsigned ID tokens (alg none) accepted in omniauth_oidc 1.0.0 and 1.0.1 for the id_token flow; fixed in 1.1.0
jasnow
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Oct 14, 2026
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Thanks for your contribution.
Change CHANGELOG URL to
- https://github.com/msuliq/omniauth_oidc/blob/main/CHANGELOG.md#110---2026-10-14
Add this to URL list
- GHSA-xgh2-jgvm-8g78
Add this to end of file
notes: |
- No CVE
- cvss_v3 from GHSA URL.
* Link CHANGELOG to the 1.1.0 section * Add GitHub advisory database URL to related urls * Add notes on missing CVE and cvss_v3 source
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Adds GHSA-xgh2-jgvm-8g78 for omniauth_oidc. I am the gem's maintainer.
omniauth_oidc 1.0.0 and 1.0.1 accept unsigned ID tokens (
alg: none) whenclient_signing_algis not configured, which allows an authentication bypass in theresponse_type: "id_token"flow. Fixed in 1.1.0. Versions before 1.0.0 are not affected.The GitHub advisory is published; no CVE has been assigned yet.
bundle exec rspecandyamllint gems rubiespass locally.Prepared with Claude Code and reviewed by me.